CN114341585A - Plate heat exchanger for treating liquid feed - Google Patents
Plate heat exchanger for treating liquid feed Download PDFInfo
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- CN114341585A CN114341585A CN202080064046.3A CN202080064046A CN114341585A CN 114341585 A CN114341585 A CN 114341585A CN 202080064046 A CN202080064046 A CN 202080064046A CN 114341585 A CN114341585 A CN 114341585A
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- feed
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- 239000007788 liquid Substances 0.000 title claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 124
- 230000008016 vaporization Effects 0.000 claims abstract description 74
- 238000009833 condensation Methods 0.000 claims abstract description 69
- 230000005494 condensation Effects 0.000 claims abstract description 69
- 238000009834 vaporization Methods 0.000 claims abstract description 60
- 238000010438 heat treatment Methods 0.000 claims description 33
- 239000013535 sea water Substances 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 9
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 8
- 239000012530 fluid Substances 0.000 description 21
- 239000000498 cooling water Substances 0.000 description 20
- 239000013505 freshwater Substances 0.000 description 18
- 239000012809 cooling fluid Substances 0.000 description 5
- 238000010612 desalination reaction Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
- F28D9/0068—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements with means for changing flow direction of one heat exchange medium, e.g. using deflecting zones
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/4604—Treatment of water, waste water, or sewage by electrochemical methods for desalination of seawater or brackish water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
- F28D9/0075—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements the plates having openings therein for circulation of the heat-exchange medium from one conduit to another
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0093—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/005—Arrangements for preventing direct contact between different heat-exchange media
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
- F28D2021/0066—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications with combined condensation and evaporation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2230/00—Sealing means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The present invention relates to a plate heat exchanger for treating a liquid feed, the heat exchanger comprising a plurality of heat exchanger plates arranged in series. Each heat exchanger plate defines a vaporization section for vaporizing feed material, a condensation section for condensing feed material, a separation section positioned between the vaporization section and the condensation section for separating vaporized feed material and unvaporized feed material, a first passage positioned between the vaporization section and the separation section for allowing flow of vaporized feed material, a second passage positioned between the separation section and the condensation section in the first portion of the plate for allowing flow of vaporized feed material, a gasket element preventing access between the separation section and the condensation section in the second portion of the plate, and a flow directing element positioned between the separation section and the second passage for reducing flow area.
Description
Technical Field
The present invention relates to a plate heat exchanger for treating a liquid feed, a heat exchanger plate for a plate heat exchanger for treating a liquid feed, a gasket for a plate heat exchanger for treating a liquid feed, and a method for producing a plate heat exchanger for treating a liquid feed.
Background
Since many years, plants for seawater desalination have been manufactured, wherein one or several plate groups of heat exchanger plates form the main component in the process. SE 464938B discloses such a desalination plant comprising a plate pack arranged in a cylindrical vessel. The heat exchanger plates do not have ports for steam, but instead a space outside the heat exchanger plates is used as one or several flow paths for steam (depending on the kind of process). The container is a substantially cylindrical pressure vessel. In large installations comprising several plate groups, these may be placed in the longitudinal direction of the cylinder. To a certain extent, even though several containers may not be included in the apparatus, the containers are limiting with respect to the size of the apparatus.
The applicant company has produced a fresh water generator without any tank since several years, in which the evaporation, separation and condensation takes place in the plate package. Details can be found in international application WO 2006/104443 a1 assigned to Alfa Laval corporation AB. It discloses a plate heat exchanger for desalination. The heat exchanger has first and second plate interspaces formed in an alternating order in the heat exchanger. The first plate interspaces form a vaporization section, a separation section and a condensation section, while the second plate interspaces form a heating section and a cooling section. The vaporization section is used to vaporize a liquid feed (such as seawater), the separation section is used to separate vaporized feed from unvaporized feed, and the condensation section is used to condense vaporized feed. The heating section heats the vaporization section, and the cooling section cools the condensation section. The separation section extends between the two plate interspaces, i.e. also between the heating section and the cooling section in the second plate interspace. An advantage of the above mentioned heat exchanger is that it does not require any containers, since the entire treatment of the seawater is performed in the plate package.
The above plate heat exchanger has centrally located ports for heating fluid, cooling fluid and fresh water, and the ports for steam and feed are arranged symmetrically about the central axis of the heat exchanger plates. In this way, only one plate type is required. The first and second plate interspaces are formed by using two different gaskets and having the heat exchanger plates arranged face to face. In this way, the corrugations in the opposing plates will form a criss-cross pattern.
The centrally located port and the port adjacent to the edge of the heat exchanger plate means (insert) that up to six gasket members will be needed along the width of the heat exchanger plate. The gasket occupies space on the heat exchanger plate which cannot be used for the process. For large heat exchangers, the width of the gasket will be about the same as for small heat exchangers. For large heat exchangers, the space occupied by the gasket may be negligible, however, for small heat exchangers, it may be significant.
The need for smaller fresh water generators that can be used on smaller vessels increases. When the size of the fresh water generator is reduced as discussed above, the spacers will still occupy substantially the same amount of space. This will make the smaller fresh water generators less area efficient than the larger fresh water generators. This is particularly problematic for condensers which require a large heat exchange area to operate properly.
One solution to the above problem is to omit the centrally located ports (especially in the condenser) and to have all the ports arranged at the edges of the heat exchange plates. An example of such a design for a condenser is presented in pending european patent application EP 19171723.0. The ports may then still be placed symmetrically about the central axis to allow the individual plates to be flipped, i.e. turned 180 degrees around the central axis, while keeping the ports at the same relative position. By keeping the port and gasket groove symmetrical about the central axis, only one plate type is required.
Having a centrally located port for cooling fluid allows the passage of feed for vaporization to be placed adjacent to both edges of the plate, however, arranging the port only at the edges means that when opposite sides of the plate are used for cooling fluid and condenser condensate ports, the only passage of feed for vaporization from the separator to the condenser can be located adjacent to only one edge of the plate. Thus, the vaporized feed stream will be asymmetric in the separation section. Experiments and simulations have shown that the distribution of the flow in the separator is thus negatively affected, since a larger part of the flow will take the shortest path between the vaporization section and the condenser. This, in turn, can result in carrying unevaporated fluid (i.e., droplets) from the evaporator to the condenser.
It is therefore an object of the present invention to provide a technique for treating a liquid feed which avoids the above-mentioned problems.
US 8,646,517 describes a heat exchanger plate with gaskets, where the displaced gaskets are close to the port holes.
CN 203820488 describes a desalination plate showing field (field) gaskets with internal protrusions.
Disclosure of Invention
The above object is achieved in a first aspect by a plate heat exchanger for treating a liquid feed, the heat exchanger comprises a plate package having a plurality of consecutively arranged heat exchanger plates, each heat exchanger plate defining a first longitudinal edge, an opposite second longitudinal edge extending parallel to the first longitudinal edge, and a central axis extending substantially centrally between and parallel to the first and second longitudinal edges, the central axis divides the plate into a first portion extending between the first longitudinal edge and the central axis and a second portion extending between the second longitudinal edge and the central axis, the plate pack defines first plate interspaces and second plate interspaces arranged in an alternating order, each plate interspace being surrounded by a gasket extending along a first and a second longitudinal edge of each plate, each heat exchanger plate further defining:
a vaporization section for vaporizing the feed, a condensation section for condensing the feed, and a separation section for separating the vaporized feed and the unvaporized feed, the separation section being positioned between the vaporization section and the condensation section in the longitudinal direction,
a first passageway positioned between the vaporization section and the separation section in the first and second portions of the plate for allowing vaporized feed to flow from the vaporization section to the separation section,
a second pass positioned between the separation section and the condensation section in the first portion of the plate for allowing vaporized feed to flow from the separation section to the condensation section,
a gasket element preventing access between the separation section and the condensation section in the second portion of the plate, an
A flow directing element positioned between the separation section and the second passage and extending from the first edge toward the central axis for reducing a flow area between the separation section and the second passage.
The vaporization section is positioned in a lower portion of the plate pack, the condensation section is positioned in an upper portion of the plate pack, and the separation section is positioned intermediate the vaporization section and the condensation section. A first passageway between the vaporization section and the separation section allows vaporized feed material to flow upward from the entire width of the vaporization section. The first passage thus extends for a greater part of the distance between the longitudinal edges, i.e. over two portions of the plate separated by the central axis. Beside the first passage, a passage for unvaporized feed is provided.
The second passage between the separation section and the condensation section extends only over the first portion of the plate (i.e. only adjacent a first one of the longitudinal edges). Fluid access between the separation section and the condensation section in the second portion of the plate is prevented by the gasket element. This is to locate the port adjacent the edge and avoid any centrally located port as described above. The unvaporized feed thus enters a second passage extending between the separation section and the condensation section at the first longitudinal edge and condenses at a heat transfer region located at the central axis. Condensate collects at the condensate port at the opposite second longitudinal edge of the plate. The heat transfer zone of the condensing section is sealed from the separating section except at the location of the second pass.
The flow directing element extends at least a portion of the distance from the first longitudinal edge toward the central axis for reducing the flow area between the separation section and the second passage, thereby urging the vaporized feed stream to flow more toward the second edge and preventing the stream from taking the shortest path between the first passage and the second passage. This results in a more even distribution of the flow in the separation section and avoids entrainment of unvaporised feed to the condensation section. The separation section is closed by means of gaskets except at the location of the first and second passages and the outlet passage for the unvaporized feed.
According to a further embodiment of the first aspect, the flow area between the separation section and the second passage is reduced by up to 10-30% compared to the flow area of the second passage.
The above values improve the distribution of flow in the separation section while still promoting an acceptable pressure increase (due to the reduced flow area).
According to a further embodiment of the first aspect, the flow guiding element forms part of the gasket along the first edge.
In a preferred embodiment, the flow guiding element is part of a gasket. In addition to establishing a simple and reliable flow guiding element, this solution has the additional advantage of facilitating the alignment and fixation of the gasket relative to the plate. Alternatively, the flow guiding element may be pressed in the plate.
According to a further embodiment of the first aspect, the flow guiding element has a triangular shape.
In this way, the vaporized feed stream approaching the second passage from directly below the flow guiding element can be guided in a direction towards the central axis and prevented from taking the shortest path and the distribution of the stream in the separation section is improved.
According to a further embodiment of the first aspect, the flow guiding element has a rounded shape towards the separation section.
In this way, even an evaporated feed stream approaching the second passage from directly below the flow guiding element may be forced to flow in a lateral direction towards the second edge before entering the second passage. This will further extend the flow distance between the first and second passages and improve the distribution of the flow in the separation section when the flow is urged towards the second edge.
According to a further embodiment of the first aspect, every second plate interspace defines a cooling section for cooling the condensation section and/or a heating section for heating the evaporation section.
The heating section is positioned in an opposite side of the plate relative to the vaporizing section and the cooling section is positioned in an opposite side of the plate relative to the condensing section. The heating section heats the vaporization section, and the cooling section cools the condensation section.
According to a further embodiment of the first aspect, a further flow guiding element is present at the second edge extending towards the central axis.
The further flow guiding element, which preferably forms part of the gasket at the second edge, allows symmetry with respect to the flow guiding element at the first edge.
According to a further embodiment of the first aspect, the liquid feed is seawater.
The plate heat exchanger may be a fresh water generator using seawater as feed and producing fresh water.
According to a further embodiment of the first aspect, the separation section and the flow guiding element are provided in both the first and the second plate interspaces.
A separation section is then disposed between the vaporization section and the condensation section and between the heating section and the cooling section. Orifices are provided in the plates for allowing the vaporized feed material to flow between the plates.
According to a further embodiment of the first aspect, the heat exchanger plate is provided with portholes at the first and second passage for communication between the plate interspaces.
An orifice at the first pass allows vaporized feed to enter the plate gap opposite the vaporization section, and an orifice at the second pass allows vaporized feed to return to the plate gap containing the condensation section.
According to a further embodiment of the first aspect, the heat exchanger plate is provided with ports for cooling medium and condensate, and which are arranged symmetrically with respect to the central axis with respect to the ports at the second passage.
As mentioned above, typically the inlet and outlet ports for the cooling medium flowing on opposite sides of the condensing section and the outlet port for the condensate correspond to the vapor ports at the second passage at opposite edges of the plate.
According to a further embodiment of the first aspect, each heat exchanger plate is corrugated in the separation section, forming ridges and valleys, whereby the ridges correspond to the valleys on opposite sides of the plate, and whereby the ridges sink into the valleys in each plate interspace, and vice versa.
Whereas the heat exchange regions in the condensing and vaporizing sections typically have a cross-corrugated pattern in which opposing ridges of opposing plates contact at contact points, the separating section may be configured such that the opposing plates do not contact and typically carry transversely oriented valleys and ridges that sink into one another, establishing a tortuous flow path capable of capturing the unvaporized feed.
The above object is in a second aspect achieved by a heat exchanger plate for a plate heat exchanger for treating a liquid feed, the heat exchanger comprising a plate package having a plurality of consecutively arranged heat exchanger plates with gaskets in between, the heat exchanger plates defining:
a first longitudinal edge, an opposing second longitudinal edge extending parallel to the first longitudinal edge, and a central axis extending substantially centrally between the first and second longitudinal edges, the central axis dividing the plate into a first portion extending between the first longitudinal edge and the central axis and parallel to the first longitudinal edge and the central axis and a second portion extending between the second longitudinal edge and the central axis,
a vaporization section for vaporizing the feed, a condensation section for condensing the feed, and a separation section for separating the vaporized feed and the unvaporized feed, the separation section being positioned between the vaporization section and the condensation section in the longitudinal direction,
a first passageway positioned between the vaporization section and the separation section in the first and second portions of the plate for allowing vaporized feed to flow from the vaporization section to the separation section,
a second pass positioned between the separation section and the condensation section in the first portion of the plate for allowing vaporized feed to flow from the separation section to the condensation section,
an element for preventing access between the separation section and the condensation section in the second portion of the plate, an
A flow directing element positioned between the separation section and the second passage and extending from the first edge toward the central axis for reducing a flow area between the separation section and the second passage.
The above heat exchanger plate according to the second aspect is preferably used in a plate heat exchanger according to the first aspect.
The above object is achieved in a third aspect by a gasket for a plate heat exchanger for treating a liquid feed, the heat exchanger comprising a plate package having a plurality of consecutively arranged heat exchanger plates with a gasket in between, the gasket defining:
a first longitudinal edge, an opposing second longitudinal edge extending parallel to the first longitudinal edge, and a central axis extending substantially centrally between and parallel to the first and second longitudinal edges, the central axis dividing the gasket into a first portion extending between the first longitudinal edge and the central axis and a second portion extending between the second longitudinal edge and the central axis,
a vaporization section for vaporizing the feed, a condensation section for condensing the feed, and a separation section for separating the vaporized feed and the unvaporized feed, the separation section being positioned between the vaporization section and the condensation section in the longitudinal direction,
a first passageway positioned between the vaporization section and the separation section in the first and second portions of the gasket for allowing vaporized feed to flow from the vaporization section to the separation section,
a second pass positioned between the separation section and the condensation section in the first portion of the gasket for allowing vaporized feed to flow from the separation section to the condensation section,
a gasket element preventing access between the separation section and the condensation section in the second part of the gasket, an
A flow directing element positioned between the separation section and the second passage and extending from the first edge toward the central axis for reducing a flow area between the separation section and the second passage.
The above gasket according to the third aspect is preferably used with a plate according to the second aspect in a plate heat exchanger according to the first aspect.
The above object is in a fourth aspect achieved by a method of producing a plate heat exchanger for treating a liquid feed (such as seawater) by providing a plurality of heat exchange plates, each heat exchange plate defining:
a first longitudinal edge, an opposing second longitudinal edge extending parallel to the first longitudinal edge, and a central axis extending substantially centrally between and parallel to the first and second longitudinal edges, the central axis dividing the plate into a first portion extending between the first longitudinal edge and the central axis and a second portion extending between the second longitudinal edge and the central axis,
a vaporization section for vaporizing the feed, a condensation section for condensing the feed, and a separation section for separating the vaporized feed and the unvaporized feed, the separation section being positioned between the vaporization section and the condensation section in the longitudinal direction,
a first passageway positioned between the vaporization section and the separation section in the first and second portions of the plate for allowing vaporized feed to flow from the vaporization section to the separation section,
a second pass positioned between the separation section and the condensation section in the first portion of the plate for allowing vaporized feed to flow from the separation section to the condensation section, an
A flow directing element positioned between the separation section and the second passage and extending from the first edge toward the central axis for reducing a flow area between the separation section and the second passage,
the method comprises the following steps:
the heat exchanger plates are arranged consecutively in a plate package having a gasket in the middle of each of the plates, such that the plate package defines a first plate interspace and a second plate interspace arranged in an alternating order, whereby the gasket element prevents access between the separation section and the condensation section in the second portion of the plates, and each plate interspace is surrounded by gaskets extending along the first and second edges of each plate.
The above method according to the third aspect is preferably used for manufacturing a plate heat exchanger according to the first aspect using a plate according to the second aspect and a gasket according to the third aspect.
Drawings
Fig. 1 discloses a side view of a plate heat exchanger according to the invention.
Fig. 2 discloses a view of the front side of the heat exchanger plate and the gasket.
Fig. 3 discloses a view of the rear side of the heat exchanger plate and the gasket.
Detailed Description
Fig. 1 discloses a side view of a plate heat exchanger 10 according to the invention. In the following description, an application is described in relation to desalination of seawater, i.e. the feed is seawater. It is to be noted, however, that the present invention is not limited to the feed being seawater, but may also relate to any other treatment, such as distillation of a liquid. The plate heat exchanger comprises a number of compression-moulded heat exchanger plates 12 arranged parallel and in succession to each other such that they form a plate package 14. The plate pack 14 is arranged between a frame plate 16 and a pressure plate 18.
Between the heat exchanger plates 12, first plate interspaces 20 and second plate interspaces 22 are formed. The first plate interspaces 20 and the second plate interspaces 22 are arranged in an alternating order in the plate package 14 such that substantially each first plate interspace 20 is surrounded by two second plate interspaces 22 and substantially each second plate interspace 22 is surrounded by two first plate interspaces 20. The different sections in the plate package 14 are delimited from each other by means of a gasket (not shown) in each plate interspace, whereby the first plate interspace 20 comprises a gasket of a first type (not shown) and the second plate interspace 22 comprises a gasket of a second type (not shown). The plate package 14, i.e. the heat exchanger plates 12 and the gaskets (not shown) arranged between them, are held together by means of schematically indicated fastening bolts 24 in a manner known per se.
The plate pack 14 is connected to a cooling water inlet conduit 26, a cooling water outlet conduit 28 and a fresh water outlet conduit 30. The cooling water is typically seawater and so the cooling water outlet conduit 28 is connected to a seawater inlet conduit 32 in order to recover the heat absorbed by the cooling water. The plate package 12 is further connected to a heating fluid inlet conduit 34 and a heating fluid outlet conduit 36. The heating fluid is used to evaporate the feed, i.e. the seawater entering the plate package 14 through the seawater inlet conduit 32. The heating fluid may be heated water, such as jacket water from a marine engine. The condensed fresh water exits the plate pack 14 through fresh water outlet conduit 30.
Fig. 2 discloses a view of a first type of gasket 38 and the front side of a heat exchanger plate, referenced 12a, of a plate heat exchanger according to the invention.
Each heat exchanger plate 12a has a first longitudinal edge 40, an opposite second longitudinal edge 42 substantially parallel to the first longitudinal edge 40, an upper edge 44 and a lower edge 46 located opposite the upper edge 44. The heat exchanger plate 12a further defines a central axis 48 extending substantially centrally between the longitudinal edges 40, 42 in the longitudinal direction. The centre axis 48 extends substantially vertically when the plate package is positioned in the normal position of use.
The heat exchanger plates include a vaporization section 50a adjacent the lower edge 46 for vaporizing the feed (i.e., seawater), a condensation section 52a adjacent the upper edge 44 for condensing the vaporized feed, and a separation section 54a positioned intermediate the vaporization section 50a and the condensation section 52a for separating the vaporized feed from the unvaporized feed. The vaporization section 50a is connected to the separation section 54a via a first passage 56, and the separation section 54a is connected to the condensation section 52a via a second passage 58 for allowing vaporized feed to flow from the vaporization section 50a to the condensation section 52a via the separation section 54 a. Second passage 58 extends only adjacent first edge 40, and gasket element 38c is positioned to prevent (present) fluid from being accessed between separation section 54a and condensation section 52a outside of second passage 58 (i.e., adjacent second edge 42).
The vaporizing section 50a and the condensing section 52a are corrugated, defining valleys and ridges having an oblique angle, forming a cross-corrugated pattern with the opposing plates to increase heat transfer through the heat exchanger plate 12 a. A first plate interspace is formed by arranging two plates 12a face to face, with a gasket 38 of a first type positioned in the middle of the heat exchanger plates 12 a. The two plates 12a forming the plate interspaces are identical, however, one of the heat exchanger plates 12a is rotated 180 degrees around the centre axis 46. In this way, the corrugations of the heat exchanger plates 12a may be arranged such that the opposite ridges form a cross-like pattern and contact each other at contact points.
The heat exchanger plates 12a define an elongated lower vapor port 60 positioned in the first pass 56 allowing some of the vaporized feed from the vaporization section 50a to pass to the opposing plate gap comprising the parallel separation sections. Further, three upper vapor ports 62, 64, 66 are positioned in the second passage 58 adjacent the first longitudinal edge 40 for allowing vaporized feed to pass through the heat exchanger plates 12a to the condensing section 52 a.
The cooling water outlet port 68, the cooling water inlet port 70, and the fresh water outlet port 72 are positioned adjacent the second edge 42. The cooling water inlet port 70 communicates with a cooling water inlet conduit, the cooling water outlet port 72 communicates with a cooling water outlet conduit, and the fresh water outlet port 58, which collects condensed feed from the condensing section 52a, communicates with a fresh water outlet conduit. The ports 62, 64, 66 and 68, 70, 72 are symmetrically arranged about the central axis 48.
A heating fluid inlet port 74 is centrally located adjacent the vaporization section 50a and a heating fluid outlet port 76 is provided. The heating fluid inlet port 74 communicates with the heating fluid inlet conduit and the heating fluid outlet port 76 communicates with the cooling water outlet conduit. In addition, a feed inlet port 78 connected to a seawater inlet conduit for supplying seawater to vaporization section 50a is centrally located adjacent lower edge 46, and two outlet ports 80, 80' for collecting unvaporized feed flowing downward from separation section 54a are located on opposite sides of feed inlet port 78 adjacent lower edge 46, but separated from feed inlet port 78.
The first type of gasket 38 surrounds the heat exchanger plate 12a and defines a vaporization section 50a, a separation section 54a, and a condensation section 52 a. The cooling water inlet port 68, cooling water outlet port 70, heating fluid inlet port 74 and heating fluid outlet port 76 are sealed with respect to each other and with respect to the vaporization section 50a, separation section 54a and condensation section 52a by the gasket 38 in the current plate gap.
The upper vapor ports 62, 64, 66 correspond in size and shape to the cooling water inlet port 68, the cooling water outlet port 70, and the fresh water (condensate) outlet port 72, respectively, and they are symmetrically arranged about the central axis 18. In this way, the heat exchanger plate may be rotated about the central axis 18 without changing the configuration of the six ports 62, 64, 66, 68, 70, 72. In this way, the centrally located port may be omitted from the condensing section 52a, and the condensing section 52a may be made larger than with a centrally located port. The fresh water (condensate) outlet port 72 is separated from the separation section 54a by the spacer element 38 c.
The flow-directing element 82 is disposed between the separation section 54a and the second passage 58. The flow directing element is formed by the shim 38 at the first edge 40 and extends toward the central axis 48. The flow directing element 82 forms an obstruction to vapor flow from the separation section 54a into the second passage 58 and directs vapor flow from the first passage into the separation section toward the second edge 42. The flow area is reduced at the flow directing element 82 compared to the second passage 58. This forces the vapor flow to take a longer route toward the second edge 42 and prevents the flow from taking a direct route from the first passage 56 to the second passage 58. Thus, the flow directing elements 82 reduce the risk of unvaporized feed being carried into the second passage 58 by allowing for an even distribution of flow over the separation section 54 a. The flow guiding element 82 may alternatively be made as part of the plate itself, however, preferably a gasket is used, as the flow guiding element 82 will also contribute to fixing the gasket to the edge. A corresponding flow-guiding element 82' may be provided at the second edge 42.
Fig. 3 discloses a view of a second type of gasket 38b and the rear side of a heat exchanger plate 12b of a plate heat exchanger according to the invention. Thus, heat exchanger plate 12b is identical to heat exchanger plate 12a except that it is rotated 180 degrees about central axis 46. The gasket 38b is arranged to define a heating section 52a opposite the vaporization section and a cooling section 52b opposite the condensation section. The cooling water inlet port 68 and the cooling water outlet port 70 communicate with the cooling section 52b, while the heating fluid inlet port 74 and the heating fluid outlet port 76 communicate with the heating section 50 b. The cooling section 52b and the heating section 50b are sealed from the other ports, respectively. The cooling section 52b is arranged to cool the opposite condensing section and the heating section 50b is arranged to heat the opposite vaporizing section. In both the cooling section 52b, the heating section 50b, the flow is directed along a flow path making an 18 degree turn for covering the entire heat transfer surface. The rear side forms a second plate interspace.
The rear side of the heat exchanger plate 12b also comprises a separation section 54b between the heating section 50b and the cooling section 52 b. The vaporized feed is introduced from the first pass of the first plate interspaces via the lower vapor apertures 60. The separation section 54b functions equivalently to the one on the opposite side, and separates the vaporized feed and the unvaporized feed. The vaporized feed flows upward through the upper vapor apertures 62, 64, 66 to the second pass, while the unvaporized feed flows downward to the outlets 80, 80'.
The separation section 54b also includes a flow directing element 82 for the same purpose as on the opposite side. The flow directing element 82 forms an obstruction to vapor flow from the separation section 54b into the second passage 58 and directs vapor flow from the first passage into the separation section toward the second edge 42. The flow area is reduced at the flow directing element 82 compared to the second passage 58. This forces the vapor flow to take a longer route toward the second edge 42 and prevents the flow from taking a direct route from the lower vapor apertures 60 to the upper vapor apertures 62, 64, 66. Thus, the flow directing elements 82 reduce the risk of unvaporized feed being carried into the upper vapor apertures by allowing for an even distribution of flow over the separation section 54 b. The flow guiding element 82 may alternatively be made as part of the plate itself, however, preferably a gasket is used, as the flow guiding element 82 will also contribute to fixing the gasket to the edge. A corresponding flow-guiding element 82' may be provided at the second edge 42.
Reference numerals
10. Plate heat exchanger
12. Heat exchanger plate
12a/b. heat exchanger plate front side/heat exchanger plate back side
14. Plate set
16. Frame plate
18. Pressure plate
20. First plate gap
22. Second plate gap
24. Fastening bolt
26. Cooling water inlet conduit
28. Cooling water outlet conduit
30. Fresh water outlet conduit
32. Seawater inlet conduit
34. Heating fluid inlet conduit
36. Heated fluid outlet conduit
38a/b/c. first type shim/second type shim/shim member
40. First longitudinal edge
42. Second longitudinal edge
44. Upper edge
46. Lower edge
48. Central axis
50a/b. vaporization section/heating section
52a/b. condensing section/cooling section
54a/b. separation section
56. First path
58. Second path
60. Lower steam vent
62/64/66 Upper steam Port
68. Cooling fluid inlet
70. Outlet for cooling fluid
72. Fresh water (condensate) outlet
74. Heating fluid inlet
76. Heated fluid outlet
78. Feed inlet
80. Unvaporized feed outlet
82. Flow guiding element
A (') represents a similar feature in different embodiments.
Claims (17)
1. A plate heat exchanger for treating a liquid feed, the heat exchanger comprising a plate pack having a plurality of consecutively arranged heat exchanger plates, each heat exchanger plate defining a first longitudinal edge, an opposite second longitudinal edge extending parallel to the first longitudinal edge, and a central axis extending substantially centrally between and parallel to the first and second longitudinal edges, the central axis dividing the plate into a first portion extending between the first longitudinal edge and the central axis and a second portion extending between the second longitudinal edge and the central axis, the plate pack defining first and second plate interspaces arranged in an alternating sequence, each plate interspace being surrounded by a gasket extending along the first and second longitudinal edges of each plate, each heat exchanger plate further defines:
a vaporization section for vaporizing the feed, a condensation section for condensing the feed, and a separation section for separating vaporized feed and unvaporized feed, the separation section being positioned between the vaporization section and the condensation section in a longitudinal direction,
a first passage positioned between the vaporization section and the separation section in the first and second portions of the plate for allowing the vaporized feed to flow from the vaporization section to the separation section,
a second passage positioned between the separation section and the condensation section in the first portion of the plate for allowing the vaporized feed to flow from the separation section to the condensation section,
a gasket element preventing access between the separation section and the condensation section in the second portion of the plate, an
A flow-directing element positioned between the separation section and the second passage and extending from a first edge toward the central axis for reducing a flow area between the separation section and the second passage.
2. The plate heat exchanger according to claim 1, wherein the flow area between the separation section and the second passage is reduced by up to 10-30% compared to the flow area of the second passage.
3. A plate heat exchanger according to any of the preceding claims, wherein the flow guiding element forms part of the gasket along the first edge.
4. A plate heat exchanger according to claim 3, wherein the flow guiding element has a triangular shape.
5. The plate heat exchanger according to claim 4, wherein the flow guiding element has a rounded shape towards the separation section.
6. A plate heat exchanger according to any of the preceding claims, wherein every other plate interspace defines a cooling section for cooling the condensation section and/or a heating section for heating the evaporation section.
7. A plate heat exchanger according to any one of the preceding claims, wherein a further flow guiding element is present at a second edge extending towards the centre axis.
8. The plate heat exchanger according to any of the preceding claims, wherein the separation section and the flow guiding element are provided in both the first plate interspaces and the second plate interspaces.
9. The plate heat exchanger according to claim 8, wherein heat exchanger plates are provided with portholes for communication between the plate interspaces at the first and second passages.
10. A plate heat exchanger according to claim 9, wherein the heat exchanger plates are provided with ports for cooling medium and condensate, and which are arranged symmetrically with respect to the central axis with respect to the ports at the second passage.
11. A plate heat exchanger according to any of the preceding claims, wherein each heat exchanger plate is corrugated in the separation section, forming ridges and valleys, whereby a ridge corresponds to a valley on the opposite side of the plate, and whereby a ridge sinks into a valley in each plate interspace, and vice versa.
12. A plate heat exchanger according to any of the preceding claims, wherein the condensation section and the evaporation section each define a heat exchange area having a cross-corrugated pattern in which opposing ridges of opposing plates meet at a contact point.
13. A plate heat exchanger according to any of the preceding claims, wherein the evaporation section and the condensation section are corrugated, defining valleys and ridges having an oblique angle, forming a cross-corrugated pattern with the counter plate.
14. Use of a heat exchanger according to any of the preceding claims, wherein the liquid feed is seawater.
15. A heat exchanger plate for a plate heat exchanger for treating a liquid feed, the heat exchanger comprising a plate package having a plurality of consecutively arranged heat exchanger plates with gaskets in between, the heat exchanger plates defining:
a first longitudinal edge, an opposing second longitudinal edge extending parallel to the first longitudinal edge, and a central axis extending substantially centrally between the first and second longitudinal edges, the central axis dividing the plate into a first portion extending between and parallel to the first and second longitudinal edges and a second portion extending between the second longitudinal edge and the central axis,
a vaporization section for vaporizing the feed, a condensation section for condensing the feed, and a separation section for separating vaporized feed and unvaporized feed, the separation section being positioned between the vaporization section and the condensation section in a longitudinal direction,
a first passage positioned between the vaporization section and the separation section in the first and second portions of the plate for allowing the vaporized feed to flow from the vaporization section to the separation section,
a second passage positioned between the separation section and the condensation section in the first portion of the plate for allowing the vaporized feed to flow from the separation section to the condensation section,
an element for preventing access between the separation section and the condensation section in the second portion of the plate, an
A flow-directing element positioned between the separation section and the second passage and extending from a first edge toward the central axis for reducing a flow area between the separation section and the second passage.
16. A gasket for a plate heat exchanger for treating a liquid feed, the heat exchanger comprising a plate pack having a plurality of consecutively arranged heat exchanger plates with a gasket in between, the gasket defining:
a first longitudinal edge, an opposing second longitudinal edge extending parallel to the first longitudinal edge, and a central axis extending substantially centrally between and parallel to the first and second longitudinal edges, the central axis dividing the gasket into a first portion extending between the first longitudinal edge and the central axis and a second portion extending between the second longitudinal edge and the central axis,
a vaporization section for vaporizing the feed, a condensation section for condensing the feed, and a separation section for separating vaporized feed and unvaporized feed, the separation section being positioned between the vaporization section and the condensation section in a longitudinal direction,
a first passage positioned between the vaporization section and the separation section in the first and second portions of the gasket for allowing the vaporized feed to flow from the vaporization section to the separation section,
a second passage positioned between the separation section and the condensation section in the first portion of the gasket for allowing the vaporized feed to flow from the separation section to the condensation section,
a gasket element preventing access between the separation section and the condensation section in the second portion of the gasket, an
A flow-directing element positioned between the separation section and the second passage and extending from a first edge toward the central axis for reducing a flow area between the separation section and the second passage.
17. A method of producing a plate heat exchanger for treating a liquid feed, such as seawater, by providing a plurality of heat exchange plates, each heat exchanger plate defining:
a first longitudinal edge, an opposing second longitudinal edge extending parallel to the first longitudinal edge, and a central axis extending substantially centrally between and parallel to the first and second longitudinal edges, the central axis dividing the plate into a first portion extending between the first longitudinal edge and the central axis and a second portion extending between the second longitudinal edge and the central axis,
a vaporization section for vaporizing the feed, a condensation section for condensing the feed, and a separation section for separating vaporized feed and unvaporized feed, the separation section being positioned between the vaporization section and the condensation section in a longitudinal direction,
a first passage positioned between the vaporization section and the separation section in the first and second portions of the plate for allowing the vaporized feed to flow from the vaporization section to the separation section,
a second passageway positioned between the separation section and the condensation section in the first portion of the plate for allowing the vaporized feed to flow from the separation section to the condensation section, an
A flow-directing element positioned between the separation section and the second passage and extending from a first edge toward the central axis for reducing a flow area between the separation section and the second passage,
the method comprises the following steps:
arranging the heat exchanger plates successively in a plate package having a gasket in between each of the plates, such that the plate package defines a first plate interspace and a second plate interspace arranged in an alternating order, whereby a gasket element prevents access between the separation section and the condensation section in the second portion of the plates, and each plate interspace is surrounded by the gasket extending along a first edge and a second edge of each plate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19197266.0 | 2019-09-13 | ||
| EP19197266.0A EP3792578B1 (en) | 2019-09-13 | 2019-09-13 | Heat exchanger plate and plate heat exchanger for treatment of a liquid feed |
| PCT/EP2020/074709 WO2021048005A1 (en) | 2019-09-13 | 2020-09-04 | Plate heat exchanger for treatment of a liquid feed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114341585A true CN114341585A (en) | 2022-04-12 |
| CN114341585B CN114341585B (en) | 2023-12-26 |
Family
ID=67956555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080064046.3A Active CN114341585B (en) | 2019-09-13 | 2020-09-04 | Plate heat exchanger for treating liquid feed |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP3792578B1 (en) |
| JP (1) | JP2022551397A (en) |
| CN (1) | CN114341585B (en) |
| DK (1) | DK3792578T3 (en) |
| ES (1) | ES2959962T3 (en) |
| FI (1) | FI3792578T3 (en) |
| PT (1) | PT3792578T (en) |
| WO (1) | WO2021048005A1 (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1256964A (en) * | 1968-06-28 | 1971-12-15 | ||
| DE3220774A1 (en) * | 1982-06-02 | 1983-12-08 | W. Schmidt GmbH & Co KG, 7518 Bretten | PLATE EVAPORATOR OR CONDENSER |
| DE3721132A1 (en) * | 1987-06-26 | 1989-01-05 | Gea Ahlborn Gmbh & Co Kg | Plate evaporator or plate condenser |
| US5587053A (en) * | 1994-10-11 | 1996-12-24 | Grano Environmental Corporation | Boiler/condenser assembly for high efficiency purification system |
| CN1165286A (en) * | 1996-03-18 | 1997-11-19 | 波克股份有限公司 | Heat exchanger |
| CN1809510A (en) * | 2003-06-17 | 2006-07-26 | 笹仓机械工程有限公司 | Plate type fresh water generator |
| SE0500728L (en) * | 2005-04-01 | 2006-10-02 | Alfa Laval Corp Ab | plate heat exchangers |
| CN101023316A (en) * | 2004-07-28 | 2007-08-22 | 3M创新有限公司 | Heat exchanger and fluid reservoir |
| DE102006048305A1 (en) * | 2006-10-12 | 2008-04-17 | Modine Manufacturing Co., Racine | Plate heat exchanger has trough-shaped heat-exchanger plates stacked into each other with their outer edges next to each other and flow channels for cooling liquid between the heat-exchanger plates |
| CN101310156A (en) * | 2005-11-18 | 2008-11-19 | 卡萨尔甲醇公司 | Method for the production of a plate type heat exchanger and related heat exchanger |
| KR101146105B1 (en) * | 2011-10-25 | 2012-05-16 | 주식회사 엘에치이 | Heat plate for heat exchanger |
| CN102803886A (en) * | 2010-04-07 | 2012-11-28 | 栢坚国际有限公司 | Apparatus, method and system for heat exchange |
| CN203820488U (en) * | 2014-02-08 | 2014-09-10 | 上海朗金嵩特传热技术有限公司 | Plate-type seawater desalination device and heat exchange plate thereof |
| CN105110397A (en) * | 2015-09-25 | 2015-12-02 | 四平市巨元瀚洋板式换热器有限公司 | Sea water desalination apparatus |
| CN106662382A (en) * | 2014-07-01 | 2017-05-10 | 大金工业株式会社 | Falling film evaporator |
| US20170299287A1 (en) * | 2016-04-14 | 2017-10-19 | Hamilton Sundstrand Corporation | Multi-region heat exchanger |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE464938B (en) | 1989-11-02 | 1991-07-01 | Alfa Laval Desalt | PLATFORMERS WHEN THE SEALING ARRANGEMENT PROMOTES THE DISTRIBUTION OF THE VEETSKAN FOR THE PLATE SURFACE AND HEATER-EXHAUSTING STREAMS IN THE LOW PLATES |
| KR101157529B1 (en) * | 2005-04-01 | 2012-06-22 | 알파 라발 코포레이트 에이비 | A Plate Heat Exchanger |
| SE530012C2 (en) | 2006-06-05 | 2008-02-12 | Alfa Laval Corp Ab | Plate and gasket for plate heat exchanger |
| EP3734209A1 (en) * | 2019-04-30 | 2020-11-04 | Alfa Laval Corporate AB | A plate heat exchanger for treatment of a feed, a plate for a plate heat exchanger for treatment of a feed, a gasket for use together with the heat exchanger plate and a method of producing a heat exchanger for treatment of a feed |
-
2019
- 2019-09-13 ES ES19197266T patent/ES2959962T3/en active Active
- 2019-09-13 FI FIEP19197266.0T patent/FI3792578T3/en active
- 2019-09-13 PT PT191972660T patent/PT3792578T/en unknown
- 2019-09-13 DK DK19197266.0T patent/DK3792578T3/en active
- 2019-09-13 EP EP19197266.0A patent/EP3792578B1/en active Active
-
2020
- 2020-09-04 WO PCT/EP2020/074709 patent/WO2021048005A1/en active Application Filing
- 2020-09-04 JP JP2022516124A patent/JP2022551397A/en active Pending
- 2020-09-04 CN CN202080064046.3A patent/CN114341585B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1256964A (en) * | 1968-06-28 | 1971-12-15 | ||
| DE3220774A1 (en) * | 1982-06-02 | 1983-12-08 | W. Schmidt GmbH & Co KG, 7518 Bretten | PLATE EVAPORATOR OR CONDENSER |
| DE3721132A1 (en) * | 1987-06-26 | 1989-01-05 | Gea Ahlborn Gmbh & Co Kg | Plate evaporator or plate condenser |
| US5587053A (en) * | 1994-10-11 | 1996-12-24 | Grano Environmental Corporation | Boiler/condenser assembly for high efficiency purification system |
| CN1165286A (en) * | 1996-03-18 | 1997-11-19 | 波克股份有限公司 | Heat exchanger |
| CN1809510A (en) * | 2003-06-17 | 2006-07-26 | 笹仓机械工程有限公司 | Plate type fresh water generator |
| CN101023316A (en) * | 2004-07-28 | 2007-08-22 | 3M创新有限公司 | Heat exchanger and fluid reservoir |
| SE0500728L (en) * | 2005-04-01 | 2006-10-02 | Alfa Laval Corp Ab | plate heat exchangers |
| CN101310156A (en) * | 2005-11-18 | 2008-11-19 | 卡萨尔甲醇公司 | Method for the production of a plate type heat exchanger and related heat exchanger |
| DE102006048305A1 (en) * | 2006-10-12 | 2008-04-17 | Modine Manufacturing Co., Racine | Plate heat exchanger has trough-shaped heat-exchanger plates stacked into each other with their outer edges next to each other and flow channels for cooling liquid between the heat-exchanger plates |
| CN102803886A (en) * | 2010-04-07 | 2012-11-28 | 栢坚国际有限公司 | Apparatus, method and system for heat exchange |
| KR101146105B1 (en) * | 2011-10-25 | 2012-05-16 | 주식회사 엘에치이 | Heat plate for heat exchanger |
| CN203820488U (en) * | 2014-02-08 | 2014-09-10 | 上海朗金嵩特传热技术有限公司 | Plate-type seawater desalination device and heat exchange plate thereof |
| CN106662382A (en) * | 2014-07-01 | 2017-05-10 | 大金工业株式会社 | Falling film evaporator |
| CN105110397A (en) * | 2015-09-25 | 2015-12-02 | 四平市巨元瀚洋板式换热器有限公司 | Sea water desalination apparatus |
| US20170299287A1 (en) * | 2016-04-14 | 2017-10-19 | Hamilton Sundstrand Corporation | Multi-region heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114341585B (en) | 2023-12-26 |
| EP3792578B1 (en) | 2023-08-09 |
| DK3792578T3 (en) | 2023-11-13 |
| FI3792578T3 (en) | 2023-09-22 |
| PT3792578T (en) | 2023-10-19 |
| EP3792578A1 (en) | 2021-03-17 |
| ES2959962T3 (en) | 2024-02-29 |
| JP2022551397A (en) | 2022-12-09 |
| WO2021048005A1 (en) | 2021-03-18 |
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